List of top Chemistry Questions on Periodic Trends In Properties Of Elements asked in AP EAPCET

Match the following \[ \begin{array}{|c|c|} \hline \text{List-I} & \text{List-II} \\ \hline \text{A. Co, Ni} & \text{I. Electronegativity} \\ \text{B. K, Ba} & \text{II. Electron gain enthalpy} \\ \text{C. N, Cl} & \text{III. Metallic radius} \\ \text{D. Ar, Kr} & \text{IV. Standard reduction potential (-ve)} \\ \hline \end{array} \] The correct answer is

Which of the following elements has the highest first ionization enthalpy?

Correct increasing order of first ionization enthalpy is: C, O, N, F

Which of the following is not the correct order of atomic radius of the elements given?

In which of the following, elements are not in correct order with respect to the property mentioned in brackets?

Which of the following is the correct increasing order of atomic number of elements A, B and C of third period, if their oxides are amphoteric, basic and acidic in nature respectively?

Identify the correct pair of species having same number of valency electrons

Which of the following orders is not correct for the property mentioned against them?

Hydration enthalpy of which of the following ions is highest?

In which of the following, elements are correctly arranged in the decreasing order of their second ionization enthalpies?

Identify the element which has highest second ionization enthalpy:

Observe the following statements:
Statement A: In general, the ionization potential value decreases on moving down in a group.
Statement B: The first ionization potential of sodium is greater than that of potassium.

The percentage of abundance of three elements \(X, Y\) and \(Z\) in the earth's crust are about \(27.7\), \(8.3\) and \(46.0\) by mass respectively. \(X, Y\) and \(Z\) are:

The element with the electronic configuration \([Kr]\,4d^{10}\,5s^{0}\) is:

The successive ionization enthalpies of an element \(X\) in \(\text{kJ mol}^{-1}\) are \(1012,\ 1907,\ 2955,\ 4955,\ 6275\) and \(21260\) respectively, the element \(X\) is:

In which of the following the elements are in correct order of their chemical reactivity in terms of oxidizing property?

The element with highest electronegativity value after fluorine is

In which of the following, the elements Al, B, Mg and K are correctly arranged in the increasing order of their metallic character?

Assertion (A): \(16^{th}\) group elements have higher ionization enthalpy values than \(15^{th}\) group elements in the corresponding periods.
Reason (R): \(15^{th}\) group elements have half-filled stable electronic configurations.

Assertion (A): Fluorine has smaller negative electron gain enthalpy than chlorine
Reason (R): The electron-electron repulsion is higher in chlorine than in fluorine

In which of the following, oxides of three elements \(X\), \(Y\) and \(Z\) are correctly arranged in the increasing order of acidic nature. The electronic configurations of \(X\), \(Y\) and \(Z\) are \([\text{Ne}]3s^23p^1\), \([\text{Ne}]3s^23p^5\), \([\text{Ne}]3s^2\) respectively.

In which of the following, elements are arranged in the correct order of their electron gain enthalpies?

In second period of the long form of the periodic table an element \(X\) has second lowest first ionization enthalpy and element \(Y\) has second highest first ionization enthalpy values. What are \(X\) and \(Y\)?